（）是指教育者通过互联网与教育对象进行实时交流和对话的教育方法A、在线交流法 B、取舍

Believe it or not, a rain check is not a weather report. A rain check is a small piece of paper. When can you get a rain check? Well, if you are going to a ball game or some other open-air activity and it is called off because of rain or some other reason, you may receive a rain check. With it you may go there again without paying.

You may also receive a rain check at a shop. As you know, sometimes when you go to a shop to buy something which is on sale, it is sold out. You may ask the assistant to give you a rain check and with it you can go again next time to buy what you need at the sale price.

Here’s another way to use this word. If someone invites you to go somewhere, you would like to go very much but cannot, you may say “May I have a rain check?” This means, “I will come next time.” But you can never say “May I take a rain check?” when your teacher gives you some homework.

根据短文内容，判断一下句子的正（T）误（F）。

小题1:A rain check is a piece of paper with weather report on it.    (  )

小题2:When a ball game is called off because of rain, we can get a rain check.    (  )

小题3:We can buy something we need without paying with a rain check.    (  )

小题4:Sometimes a rain check means “I will come next time.”    (  )

小题5:Teachers will be glad to give their students a rain check when they ask them to do some homework.    (  )

进口的特定减免税机器设备不可以在两个享受特定减免税优惠的企业之间结转，只能在本企业自用。 ( )

从供选择的答案中选出应填入下列叙述中()内的正确答案：
客户机/服务器(简称C/S)模式属于以

• (A) 为中心的网络模式，其工作过程是客户端
• (B) ，服务器
• (C) ，并
• (D) ，它的主要优点是E。
  A：①大型、小型机 ②服务器
  ③通信 ④交换
  B：①向服务器发出命令请求 ②向服务器发出浏览查询请求
  ③向网络发送查询请求 ④在本机上发出自我请求
  C：①接收请求并告诉请求端再发一次
  ②接收请求，进入中断服务程序，打印本次请求内容
  ③响应请求并在服务器端执行相应请求服务
  ④把响应请求转回到请求端并执行
  D：①把执行结果在打印服务器上输出
  ②把显示内容送回客户机
  ③把整个数据库内容送回客户机
  ④把执行结果送回客户机
  Ⅱ：①网络通信线路上只传送请求命令和计算结果，减轻通信压力
  ②网络通信线路上只传递数据，从而减轻通信开销
  ③数据的安全性得到保障
  ④数据的完整性得到保障

审查施工图预算方法较多，( )的优点是时间短、效果好；缺点是只适应按标准图样设计的工程，适用范围小，具有局限性。

A．全面审查法
B．分组计算审查法
C．标准预算审查法
D．对比审查法

避雷器验收包括可研初设审查、（）、启动验收等五个关键环节。

A.厂内验收

B.到货验收

C.竣工（预）验收

D.技术验收